CVE-2026-70380 in Cynap
Summary
by MITRE • 10/26/2026
A denial-of-service vulnerability has been identified in the Miracast over Infrastructure Connection Establishment (MICE) service. An unauthenticated attacker with network access to the MICE service could consume available connection capacity, preventing legitimate users from establishing MICE-based Miracast connections while the condition persists. Miracast P2P is not affected. MICE is disabled in the default configuration and must be explicitly enabled by the customer. On most devices, Miracast P2P is available independently of MICE, but a complete disruption of Miracast can occur on some devices when WLAN is configured for Infrastructure mode.
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Analysis
by VulDB Data Team • 10/26/2026
The identified vulnerability resides within the Miracast over Infrastructure Connection Establishment service, commonly referred to as MICE. This component facilitates wireless display connections by allowing devices to establish sessions through an existing Wi-Fi infrastructure rather than relying solely on peer-to-peer direct connections. The core technical flaw is a denial-of-service condition that arises from insufficient resource management or input validation within the connection establishment logic. Specifically, the service fails to adequately limit or authenticate incoming connection requests in a manner that prevents malicious actors from exhausting available system resources. An unauthenticated attacker who possesses network access to the same Wi-Fi infrastructure can exploit this flaw by flooding the MICE service with excessive connection attempts. This activity consumes the limited pool of concurrent connections and processing capacity allocated for session establishment, effectively creating a resource exhaustion scenario.
The operational impact of this vulnerability is primarily a denial-of-service against legitimate users attempting to use Miracast features over an infrastructure network. When the condition persists due to ongoing exploitation, legitimate devices are unable to establish new MICE-based sessions. It is critical to note that this vulnerability does not affect Miracast Peer-to-Peer (P2P) functionality, which operates on a different protocol stack and connection mechanism. However, the impact can be more severe in specific deployment scenarios. On certain device configurations where WLAN is explicitly set to Infrastructure mode without fallback options or when P2P capabilities are disabled or unavailable, this vulnerability can lead to a complete disruption of all Miracast functionality. In such cases, users lose the ability to wirelessly mirror screens entirely until the service recovers or the configuration is altered.
From a risk assessment perspective, this vulnerability aligns with CWE-400, which covers Uncontrolled Resource Consumption, as well as CWE-770, Allocation of Resources Without Limits or Throttling. The attack vector corresponds to ATT&CK technique T1498, Network Denial of Service, specifically within the context of network service exhaustion. Because MICE is disabled by default in most operating system configurations and requires explicit customer enablement, the immediate risk surface is reduced for typical end-users who do not actively configure their devices for infrastructure-based Miracast sessions. Nevertheless, organizations that rely on wireless display capabilities in conference rooms or enterprise environments where this feature is enabled remain at risk if proper network segmentation or access controls are not implemented.
Mitigation strategies should focus on both configuration management and network-level defenses. The most effective immediate mitigation is to ensure that the MICE service remains disabled unless it is strictly required for specific business operations. Administrators should audit device configurations to verify that this feature is turned off by default in enterprise images or group policies. For environments where Miracast over infrastructure is necessary, implementing strict network access controls can significantly reduce exposure. This includes segmenting wireless networks so that only authorized devices can connect to the same subnet as display receivers, thereby preventing unauthenticated attackers from reaching the vulnerable service endpoint. Additionally, deploying intrusion prevention systems capable of detecting and rate-limiting excessive connection attempts to Wi-Fi direct services can help mitigate resource exhaustion attacks before they impact legitimate users. Regular monitoring of wireless access point logs for anomalous connection patterns related to MICE traffic is also recommended to detect potential exploitation attempts early.